Collapsible tube cap



March 21, 1933. y,d E ASSER Er AL 1,902,698

coLLABsIBLE TUBE cAP Filed March 8. 1932 ATTOR N EY Patented Mar. v21, 1932..V

'VICTOR E. GASSEB AN'D LEONIDES'J. GASSER, 0F MADISONfWISCONSIN COLLAPSIBLE TUBE CAP Application mea umh s, 1932. seriai No. 597,576.

This inventionV relates to collapsibletubes for liquids and semi-liquids and more particularly to closures therefor and has for the primary object, the provision of a device of the above vstated character whereby the contents of the tube may be easily dispensed therefrom without undue obstruction and obviates the loss of the closure or the'n'ecessity of attaching to and detaching the closure from the tube.

Another object of this inventionC is the provision of a slidable closure ,so attached to the tube and the latter so constructed as to conform thereto, whereby the tube may be easily and quickly vpened or closed and the discharge port and surrounding surfaces of the tube to said port may be kept clean of the contents of the tube, rendering the device sanitary and providing an efficient seal for the tube for preventing evaporation of the contents or foreign matter coming in contact therewith.

With these and other objects in view, this invention consists in certain novel features of lconstruction, combination and arrangement of parts to be hereinafter morefully described and claimed.

vFor a complete understanding of our invention, reference is to be had to the following description and accompanying drawing, in which Y Figure 1 is a side elevation illustrating a collapsible tube and closure therefor con-V structed in accordance with our invention.

Figure 2 is a fragmentary vertical sectional view illustrating the same with the closure 'shown' in an opened position in full lines and in a closed position indotted lines. Figure 3 is a view similar to Figure 2 taken at-right angles to Figure 2.

Figure 4 is a the device.

Figure 5 is a perspective view illustrating cthe closure.

top plan view illustrating .43 u Referring in detail to the drawing, the

numeral 1 indicates a collapsible tube' for containing liquids or semi-liquids and has one end sealed by suitable fasteners 2 so that the contents ma be readily placed in the tube initially. he opposite end of the tube is closed by an integral head 3 of semi-spherical shape having formed upon :its outer face and at one side thereof a flattened wall 4 terminating at one edge in an abrupt shoulder 5.

The head-3 is provided with a discharge port 55 6 of any suitable shape opening outwardly through the flat face 4 whereby the contents of the tube may be dispensed in the usual manner by squeezing 'or placing pressure upon the tube. v

A groove or channel 7 is formed on the outer face of the head 3 and has one end 'in communication with the flat' face 4 and its other end terminating in an abrupt shoulder 8 disposed opposite to the shoulder 5. A closure 9 is slidably mounted in the channel or groove 7 and has one face thereof concaved as shown at 10 to conform to the contour of the outer' face of the head 3.J The closure 9 in its outer wall is provided with a groove 11 for receiv- 70 ing a bail 12, the ends of which are received in -sockets 13 formed in opposite sides of the tube or the head thereof. The bail 1-2 is conL structed of resilient material and is offset intermediate its ends as shown-at 14 with the '75. offset fitting within the groove 1l so as to slidably secure the closure in the groove or' channel 7. The closure 9 is provided with oppo-` sitely inclined knurled faces 15 locatedat op; posite sides of the groove 1l whereby a per- 80 son by placing a finger or thumb against one of the knurled faces may move the closure in one direction and then in an 'opposite direc' tion when pressure by the thumb or finger is placed on the other knurled face. With the closure 9 positioned in the groove or channel W1th one end in engagement with the shoulder, the port 6 is uncovered so that the contents of the tube may be dispensed as desired.

By sliding the closure in the groove or channel until its opposite end engages the shoul- 'i der 5, the port 6 is closed and the contents of the tube sealed fromevaporation and foreign matter; thus it will be seen that it is possible to open and close the port without detaching the closure from the head 3. I By having the port opening outwardly through the flat face 4 allows the contents when said port is uncovered to be easily dispensed without obstruction. Referring to Figure 5 it will be 100 noted that the-ends ofthe closure 9 are .pro'

' vided with sharpened edges 16 which are adapted to scrape any foreign matter or dried contents of the `tube from the the discharge port so as to maintain the device in a highly sanitary condition.

Thebail 12 is substantially U-shaped -the free ends of which are bent angularly to orm trunnions 17 ttinglwithin the sockets 13 to pivotally connect t permitting the bail to be detached from or attached to the headwhen desired by flexing the arm\ portions of the bail. The head 3 upon its outer face and upon opposite sides thereof'is provided with tapering grooves 17 leading to the sockets 13 for the pur se of guiding or directing the trunnions 17 int-o the sockets during the mitial application of the bail to the head. 20 While we have shown and described the preferred embodiment of our invention, it

will be understood that minor changes in construction, combination and arrangement of vparts may be made without departing from the spirit and scope of our mventlon, as claimed. Having thus described our invention, what we claim is: Y' Y 1. A collapsible tube comprising a collapsible body, a semi-spherical shaped head for said`body'and having a port adjacent one edge, -said head having a groove andia flattened face in communicationwith the groove and surrounding the port, said flattened face and groove forming oppositely disposed abrupt shoulders, and a closure slidably mounted in the groove, and movable to close the ort and limited in its movement by' the shoul ers.

2. A collapsible tube comprlsing a collapsible body, a semi-spherical shaped head on f the body and having a port adjacent one' edge, saidv head having a groove anda iiattened face in communication with the groove and surrounding the porotl/a closure having a curvedface slidably mountedin the groove and upon the iattened face, and means pivfotally connecting the closure to the head.

f 3. A collapsible tube comprising a collapsible body, a semi-spherical shaped head on edge, said head havinga groove and a fiatace 4 about A.

e bail to the head, also said bail having an oiset portion itt' the body and having. a port adjacent oneclosure having a-groove to receive the bail..

5. A collapsible tube comprising a collapsif ble body, a semi-spherical shapedr head on the body and having a port adjacent one edgel said head having a groovev and a Hatten face in communication with the groove and surrounding `the port, a(j closure having a curved face slidably .mounted in the oove and u oppositely disposed sockets with grooves communicating therewith and extending toward the (first named groove, a substantially U- shaped bail having angularl disposed ends 'ournalled in said sockets an guided therein y the second named ves, said closure` having a groove to receive the bail, said bail having an offset portion fitting within the last named groove.

6. lA collapsible tube com rising a collapsible body, a semi-spherical s aped head on the body and having a port adjacent one edgol said-head having a. groove and a flatten 'face in communication with the groove and surrounding the port, 'a closure having a curved face slidably mounted in the oove n the flattened face, said head aving andY upon the atgened face, said he 4havcommunicating therewith and exten ward the iirstnamed groove, a substantially U-shaped bail having angularly disposed ends journalled in said sockets and guided therein by the second named grooves, said closure having a groove to receive the bail, 'wit inthe-last named groove, said closure avin oppositely disposed knurled faces arran on the opposite sideiof the groove of said closure.

In testimony whereof we aix our/signatures.

VCTORE. GASSER.y

-LEONIDES 3. GASSER.

tenedface in communication with the groove and surrounding the port, a closure having a curved face slidably mounted inthe groove and upon the'ilattened face, and a bail connected to the closure and pivoted to the head.

4. A'collapsible tube comprisin a collapsible y, a semi-spherical shaped ead on the body and having a port adjacent one edge,

oA 65 ing 'oppositely disposed sockets with grooves y mounted in the ve y said head. having a groove and a attened face 1n communication with the groove and,

ling'oppo'sitely disposed sockets with (grooves ing toloo los 

